Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4AZP callsign genealogy
Currently held by Lacher, Robert C
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K4AZP's current licensee, walking backwards.
- Lacher, Robert CFLgranted 2021-01-11cancelled 2025-08-01
Successor callsigns
Callsigns held now by people who previously held K4AZP.
No current licensee on record previously held this callsign.